* {
    box-sizing: border-box;
  }
  
  body {
    font-family: sans-serif;
    margin: 20px;
    padding: 0;
  }
  
  h1 {
    margin-top: 0;
    font-size: 22px;
  }
  
  h2 {
    margin-top: 0;
    font-size: 20px;
  }
  
  h3 {
    margin-top: 0;
    font-size: 18px;
  }
  
  h4 {
    margin-top: 0;
    font-size: 16px;
  }
  
  h5 {
    margin-top: 0;
    font-size: 14px;
  }
  
  h6 {
    margin-top: 0;
    font-size: 12px;
  }
  
  code {
    font-size: 1.2em;
  }
  
  ul {
    padding-inline-start: 20px;
  }
  
  .items {
    padding: 0;
  }
  
  .item {
    list-style: none;
    display: block;
    height: 40px;
    padding: 5px;
    margin-top: 10px;
    border-radius: 4px;
    border: 1px solid #aaa;
  }
  